mirror of https://github.com/helm/helm
Signed-off-by: Leo Sjöberg <leo.sjoberg@gmail.com>pull/7613/head
Leo Sjöberg
6 years ago
parent
a28d695c43
commit
796cca32bf
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/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package registry // import "helm.sh/helm/v3/internal/experimental/registry"
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import (
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"bytes"
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"net/url"
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"helm.sh/helm/v3/pkg/chartutil"
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"helm.sh/helm/v3/pkg/getter"
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)
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// Getter is the HTTP(/S) backend handler for OCI image registries.
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type Getter struct {
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Client *Client
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}
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func NewRegistryGetter(c *Client) *Getter {
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return &Getter{Client: c}
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}
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func NewRegistryGetterProvider(c *Client) getter.Provider {
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return getter.Provider{
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Schemes: []string{OCIProtocol},
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New: func(options ...getter.Option) (g getter.Getter, e error) {
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return NewRegistryGetter(c), nil
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},
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}
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}
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func (g *Getter) Get(href string, options ...getter.Option) (*bytes.Buffer, error) {
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u, err := url.Parse(href)
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if err != nil {
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return nil, err
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}
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ref, err := ParseReference(u.Host + u.Path)
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if err != nil {
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return nil, err
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}
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// first we'll pull the chart
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err = g.Client.PullChart(ref)
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if err != nil {
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return nil, err
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}
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// once we know we have the chart, we'll load up the chart
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c, err := g.Client.LoadChart(ref)
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if err != nil {
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return nil, err
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}
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buf := bytes.NewBuffer(nil)
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// lastly, we'll write the tarred and gzipped contents of the chart to our output buffer
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err = chartutil.Write(c, buf)
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return buf, err
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}
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@ -0,0 +1,129 @@
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/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package registry
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import (
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"bytes"
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"context"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"path/filepath"
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"testing"
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"time"
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auth "github.com/deislabs/oras/pkg/auth/docker"
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"github.com/docker/distribution/configuration"
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"github.com/docker/distribution/registry"
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"github.com/phayes/freeport"
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"github.com/stretchr/testify/assert"
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"golang.org/x/crypto/bcrypt"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chart/loader"
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)
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func TestValidRegistryUrlWithImageTag(t *testing.T) {
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os.RemoveAll(testCacheRootDir)
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os.Mkdir(testCacheRootDir, 0700)
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var out bytes.Buffer
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credentialsFile := filepath.Join(testCacheRootDir, CredentialsFileBasename)
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client, err := auth.NewClient(credentialsFile)
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assert.Nil(t, err, "no error creating auth client")
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resolver, err := client.Resolver(context.Background(), http.DefaultClient, false)
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assert.Nil(t, err, "no error creating resolver")
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// create cache
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cache, err := NewCache(
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CacheOptDebug(true),
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CacheOptWriter(&out),
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CacheOptRoot(filepath.Join(testCacheRootDir, CacheRootDir)),
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)
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assert.Nil(t, err, "no error creating cache")
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// init test client
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registryClient, err := NewClient(
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ClientOptDebug(true),
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ClientOptWriter(&out),
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ClientOptAuthorizer(&Authorizer{
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Client: client,
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}),
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ClientOptResolver(&Resolver{
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Resolver: resolver,
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}),
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ClientOptCache(cache),
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)
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assert.Nil(t, err, "no error creating registry client")
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// create htpasswd file (w BCrypt, which is required)
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pwBytes, err := bcrypt.GenerateFromPassword([]byte(testPassword), bcrypt.DefaultCost)
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assert.Nil(t, err, "no error generating bcrypt password for test htpasswd file")
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htpasswdPath := filepath.Join(testCacheRootDir, testHtpasswdFileBasename)
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err = ioutil.WriteFile(htpasswdPath, []byte(fmt.Sprintf("%s:%s\n", testUsername, string(pwBytes))), 0644)
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assert.Nil(t, err, "no error creating test htpasswd file")
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// Registry config
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config := &configuration.Configuration{}
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port, err := freeport.GetFreePort()
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assert.Nil(t, err, "failed to find free port for test registry")
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dockerRegistryHost := fmt.Sprintf("localhost:%d", port)
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config.HTTP.Addr = fmt.Sprintf(":%d", port)
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config.HTTP.DrainTimeout = time.Duration(10) * time.Second
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config.Storage = map[string]configuration.Parameters{"inmemory": map[string]interface{}{}}
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config.Auth = configuration.Auth{
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"htpasswd": configuration.Parameters{
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"realm": "localhost",
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"path": htpasswdPath,
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},
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}
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dockerRegistry, err := registry.NewRegistry(context.Background(), config)
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assert.Nil(t, err, "failed to create test registry")
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// Start Docker registry
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go dockerRegistry.ListenAndServe()
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registryClient.Login(dockerRegistryHost, testUsername, testPassword, false)
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ref, _ := ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", dockerRegistryHost))
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ch := &chart.Chart{}
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ch.Metadata = &chart.Metadata{
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APIVersion: "v1",
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Name: "testchart",
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Version: "1.2.3",
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}
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err = registryClient.SaveChart(ch, ref)
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assert.NoError(t, err)
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err = registryClient.PushChart(ref)
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assert.NoError(t, err)
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g := NewRegistryGetter(registryClient)
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res, err := g.Get(fmt.Sprintf("oci://%s/testrepo/testchart:1.2.3", dockerRegistryHost))
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assert.NoError(t, err, "failed to retrieve chart")
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downloadedChart, err := loader.LoadArchive(res)
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assert.NoError(t, err, "failed to load archive")
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assert.Equal(t, "testchart", downloadedChart.Name())
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assert.Equal(t, "1.2.3", downloadedChart.Metadata.Version)
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registryClient.Logout(dockerRegistryHost)
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os.RemoveAll(testCacheRootDir)
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}
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